DuraDrive MF /MS Series Non-spring Return Rotary Electronic Damper Actuators 24 Vac Three-position/Modulating

Transcription

1 General Instructions DuraDrive MF4-653/MS4-653 Series Non-spring Return Rotary Electronic Damper Actuators 4 Vac Three-position/Modulating Description The DuraDrive direct-coupled, 4 Vac, non-spring return electronic actuator is designed for modulating and three-position control of building HVAC dampers. Features Synchronous motor technology with stall protection Unique self-centering shaft coupling Application Manual override 33 lb-in (5 Nm) torque 5 preload as shipped from factory Mechanical range adjustment capabilities Offset and span adjustment models available Models with independently adjustable, dual auxiliary switches available Built-in /-inch conduit connection UL and cul listed, CE certified Used in constant or variable air volume installations for the control of HVAC dampers requiring up to 33 lb-in (5 Nm) torque. Product Numbers Table. Operating Voltage Control Built-in Control Options Product Number 4 Vac ±0%, -5% Modulating (0 to 0 Vdc) 3-position Position Feedback Dual Auxiliary Switches Input Signal Selectable 0 to 0 Vdc or to 0 Vdc MF4-653 MS4-653 MS Printed in the U.S.A (55-70) F-75

2 Warning/Caution Notations WARNING: CAUTION: Personal injury or loss of life may occur if you do not follow a procedure as specified. Equipment damage or loss of data may occur if you do not follow a procedure as specified. Specifications Power Supply Operating voltage 4 Vac +0%, -5% Frequency 50/60 Hz Power consumption Running: MS4-653 Series 5 VA/4W MF VA/3W Holding: MS4-653 Series Equipment rating. VA/W Class, in accordance with UL/cUL Class III per EN Control Signal Input signal (wires 8-) MS4-653 Series Voltage-input 0 to 0 Vdc (max. 35 Vdc) Input resistance >00K ohms Feedback Signal Position output signal (wires 9-) MS4-653 Series Voltage-output 0 to 0 Vdc Maximum output current ma Function Running torque 33 lb-in (5 Nm) Runtime for 90 opening or closing 60 Hz 5 seconds 50 Hz 50 seconds Nominal angle of rotation 90 Maximum angular rotation 95 Mounting Shaft size /4" to 3/4" (6.4 mm to 0.5 mm) diameter /4" to /" (6.4mm to 3 mm) square Minimum shaft length 3/4-inch (0 mm) Housing Enclosure NEMA Type IP54 according to EN MaterialDie-cast aluminum alloy Gear lubrication Silicone-free Ambient temperature Operation 5 F to 30 F ( 3 C to 55 C) Storage and transport 40 F to 58 F ( 40 C to 70 C) Voltage requirements at high temperatures: Minimum voltage at 85 F to 30 F (9 C to 55 C): MF models 4 Vac +0%, 5% MS models 4 Vac +0%, 0% Ambient humidity (non-condensing) 95% rh Agency certification UL 873 cul certified to Canadian Standard C. No. 4-93

3 Specifications, Continued Conformity Auxiliary features Product safety: Automatic electrical controls EN for household and similar use (Type ) Electromagnetic compatibility (EMC) 89/336/EEC Immunity for all models EN Emissions for all models EN Dual auxiliary switches AC rating DC rating 4 Vac AC 6A resistive, AC A inductive to 30 Vdc DC A Switch Range Switch A 0 to 90 with 5 intervals Recommended range usage 0 to 45 Factory setting 5 Switch B 0 to 90 with 5 intervals Recommended range usage 45 to 90 Factory setting 85 Switching hysteresis Miscellaneous Pre-cabled connection 8 AWG Cable length 3 feet (0.9 m) length Life cycle Five-year warranty Dimensions: Inches (mm) 8-3/8 H 3-/4 W -/3 D ( H 83 W 68 D) Weight. lb ( kg) Actuator Components EA0957R EA0956R Figure. DuraDrive Actuator Components Legend. Actuator housing. Positioning scale for angle of rotation 3. DIP switches and cover 4. Span adjustment 5. Offset (start point) adjustment 6. Anti-rotation bracket 7. Connection cable for power and control signals 8. Connection cable for auxiliary switches 9. Manual override 0. Auxiliary switches A & B. Position indicator. Self centering shaft adapter 3. /-inch NPT conduit connection 4. Shaft adapter locking clip 5. Position indicator adapter 3

4 Operation MS4-653 Series Apply a 0 to 0 Vdc control signal between wire 8 (Y) and wire (G0) to operate the damper actuator. The angle of rotation is proportional to the control signal. A 0 to 0 Vdc position feedback output signal is available between wire 9 (U) and wire (G0) to monitor the position of the damper motor. In the event of a power failure, the actuator holds its position. In the event that only the control signal is lost, the actuator returns to the "0" position. MF4-653 A floating control signal controls the damper actuator. The actuator s angle of rotation is proportional to the length of time the signal is applied. A 4 Vac control signal to wire 6 (Y) causes the actuator coupling to rotate clockwise. A 4 Vac control signal to wire 7 (Y) causes the actuator coupling to rotate counterclockwise. To reverse the direction of rotation, wires 6 (Y) and 7 (Y) can be interchanged. With no control voltage, the damper actuator holds its position. Overload protection Life expectancy Sizing In the event of a blockage in the damper, the actuator is overload protected over the full range to prevent damage to the actuator. An improperly tuned loop will cause excessive repositioning that will shorten the life of the actuator. The type of actuator required depends on several factors:. Obtain damper torque ratings (ft-lb/ft or Nm/m ) from the damper manufacturer.. Determine the area of the damper. 3. Calculate the total torque required to move the damper: Total Torque = Torque Rating Damper Area SF Safety Factor: When calculating the total torque required, a safety factor should be included for unaccountable variables such as slight misalignments, aging of the damper, etc. A suggested safety factor is Select the non-spring return actuator type using Table. Table. Total Torque Actuator <35 lb-in (<4Nm) MF and MS Series <70 lb-in (<8Nm) MF and MS Series <33 lb-in (<5Nm) MF4-653 and MS4-653 Series 4

5 90 Mounting and Installation Manual Override Place the actuator on the damper shaft so that the front of the actuator is accessible. (The label and the manual override button are on the front side.) The minimum damper drive shaft is 3/4-inches (0mm). The shaft length determines whether the shaft adapter will be mounted on the front or back of the actuator. See Specifications for minimum and maximum damper shaft dimensions. Set auxiliary switches, DIP switches, and Offset/Span as required by your application. (See following sections for details.) The position indicator can be mounted to show either the clockwise or counterclockwise 0 to 90 scale. An anti-rotation bracket is included with the actuator. The shaft adapter and mounting parts are shipped in a separate container with the actuator. The actuator is shipped from the factory with a 5 pre-load to ensure tight damper close off. For detailed mounting instructions, see Installation Instructions F-7. To move the damper blades and lock the position with no power present: 3. Hold down the PUSH button.. Make adjustments to the damper position Release the PUSH button. Once power is restored, the actuator returns to automated control. EA0946R L > 3 in. 77mm PUSH L < -3/8 in. 60mm PUSH Figure. Manual Override. Mechanical Range Adjustment The angular rotation is adjustable between 0 and 90 at 5-degree intervals. The range of shaft movement is limited by mounting the shaft adapter:. Loosen the shaft adapter from the damper shaft and remove the actuator from the damper shaft.. Remove the clip and shaft adapter from the actuator. EA0947R Figure EA0948R EA0949R EA095R Figure 4. Figure 5 Figure 6. 5

6 Mechanical Range Adjustment, Continued Dual Auxiliary Switch MS Return the actuator gear train to the "0" position using the steps that follow for the clockwise or counterclockwise damper shaft rotation. Clockwise to open: a. Insert the shaft adapter to the right as close as possible to the raised stop. See Figure 4. b. Hold down the PUSH button and rotate the shaft adapter to the left until it stops. See Figure 5. c. Release the PUSH button. d. If the shaft adapter is not resting against the left raised stop, remove the adapter and insert it against the left stop. e. Place the position indicator to the "0" position on the outside scale. See Figure 6. Counterclockwise to open: a. Insert the shaft adapter to the left as close as possible to the raised stop. b. Hold down the PUSH button and rotate the shaft adapter to the right until it stops. c. Release the PUSH button. d. If the shaft adapter is not resting against the right raised stop, remove the adapter and insert it against the right stop. e. Place the position indicator to 0 on the inside scale. 4. Determine the angle of rotation for the damper blade shaft. Subtract that amount from Remove the shaft adapter and insert it with the position indicator pointing to the mark on the scale calculated in the previous step. See Figure Attach the clip. 7. Rotate the damper blade shaft to its "0" position. 8. Return the actuator to the damper shaft and tighten the shaft adapter to the damper shaft. -, ,5 A B Actuator scale: Clockwise Adjustment range for switches A and B: Setting interval: 5 Switching hysteresis: EA0640R 9, ,5 Actuator Scale: Counterclockwise 6

7 70 30 Dual Auxiliary Switch, Continued MS To change the settings of A and B: NOTES: The scale is only valid when the actuator is in the "0" position on clockwise motion. For the counterclockwise rotation, the shaft adapter/position indicator has to move from 90 to 0 and then adjust the auxiliary switches. After the auxiliary switches are adjusted, the shaft adapter/position indicator has to move back to the 90 position. Use the adjustment tool provided with the actuator to turn the switch adjustment dials to the desired signal setting. Factory setting: Switch A 5 Switch B 85 Recommended range: Switch A 0 to 45 EA0875R Aux Switch Adjustment B A Figure 7. Dual Auxiliary Switch Dials. Switch B 45 to 90. NOTE: Use the long arm of the " " to point to the position of switch A. Use the narrower tab on the red ring to point to the position of switch B DIP Switch Functionality MS4-653 MS Description Label Description Function Counterclockwise Clockwise Rotary angle direction Active 0 Off Self-adaptation to mechanical range MS4-653: to 0 Vdc to 0 0 to 0 0 to 0 Vdc Positioning control signal to 0 or 0 to 0 Rotary direction Figure 8. DIP Switches. The arrow direction must match the rotational direction of the actuator. Factory setting: Self-adapting 0 CAUTION: Positioning Control Signal: (MS4-653) Alternative settings: to 0 Vdc 0 to 0 Vdc Factory setting: 0 to 0 Alternative switch-on/off for self-adaptation. : ON 0: OFF Factory setting: 0 When turning the self-adaptive feature on, or after a software reset with the feature on, the actuator will enter a five-minute calibration cycle as the actuator adjusts to the rotation limits of the system. A software reset happens after power on, or may be caused by electrostatic discharge (ESD) at levels of kv and above. 7

8 Wiring All wiring must conform to NEC and local codes and regulations. Use earth ground isolating step-down Class transformers. Do not use autotransformers. The maximum rating for a Class step-down transformer is 00 VA. Determine the supply transformer rating by summing the VA ratings of all actuators and all other components used. It is recommended that one transformer power no more than 0 actuators (or 80% of its VA). Wiring, Continued WARNINGS: Installations requiring Conformance: Except for the auxiliary switches (See Warning above) all wiring for actuators must be safety extra-low voltage (SELV) or protective extra-low voltage (PELV) per HD384. Use safety transformers per EN6558 with double isolation, designed for 00% duty-cycle for supplying SELV or PELV circuits. Over-current protection for supply lines is maximum 0A. CAUTION: Do not parallel MF4-653 actuators with any other type of actuator. Wire Designations Each wire has the standard symbol printed on it. See Table S S4 CW CCW 6 7 EA084R M A B M S S3 S5 S6 PL000R Figure 9. Modulating 0 to 0 Vdc Control 4 Vac Power Supply Figure 0. 3-position Control 4 Vac Power Supply Table 3. Actuators Symbol Function Color 4 Vac Power Supply Auxiliary Switches Supply (SP) Red Neutral (SN) Black 6 Control signal clockwise Violet 7 Control signal counterclockwise Orange 8 0 to 0 Vdc input signal Gray 9 Output for 0 to 0 Vdc position indication Pink S Switch A Common Gray/red S Switch A N.C. Gray/blue S3 Switch A N.O. Gray/pink S4 Switch B Common Black/red S5 Switch B N.C. Black/blue S6 Switch B N.O. Black/pink 8

9 Start-Up/ Commissioning Non-spring Return Modulating Control (0 to 0 Vdc) 4 Vac. Check Operation: a. Connect wires (red) and (black) to the 4 Vac power supply. b. Set the Digital Multimeter (DMM) dial to Vdc for the actuator input signal. c. Connect wires (black) and 8 (gray) to a Digital Multimeter (DMM). d. Apply a full-scale input signal (0 Vdc) to wire 8 (gray). e. Allow the actuator shaft coupling to rotate from 0 to 90. f. Stop the signal to wire 8 (gray). The shaft coupling returns to the "0" position.. Check Feedback: a. Set the DMM dial to Vdc. b. Attach wires (black) and 9 (pink) to the DMM. c. Apply a full-scale input signal to wire 8 (gray). The reading at the DMM should increase. d. Remove the signal from wire 8 (gray). The reading at the DMM should decrease and the actuator shaft coupling returns to the "0" position. 3. Check Auxiliary Switch A: a. Set the DMM dial to ohms (resistance) or continuity check. b. Connect wires S and S3 to the DMM. The DMM should indicate open circuit or no resistance. c. Apply a full-scale input signal to wire 8 (gray). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch A. d. Connect wires S and S to the DMM. The DMM should indicate open circuit or no resistance. e. Stop the signal to wire 8 (gray). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch A. 4. Check Auxiliary Switch B: a. Set the DMM dial to ohms (resistance) or continuity check. b. Connect wires S4 and S6 to the DMM. The DMM should indicate open circuit or no resistance. c. Apply a full-scale input signal to wire 8 (gray). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B. d. Connect wires S4 and S5 to the DMM. The DMM should indicate open circuit or no resistance. e. Stop the signal to wire 8 (gray). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B. Page 9

10 Start-Up/ Commissioning, Continued Non-spring Return Three-position 4 Vac Service 5. Check Operation: a. Apply a control signal (4 Vac) to wires (red) and 6 (violet). b. Allow the actuator shaft coupling to rotate from 0 to 90. c. Stop applying a control signal to wires (red) and 6 (violet). d. Apply a control signal (4 Vac) to wires (red) and 7 (orange). e. Allow the actuator shaft coupling to rotate from 90 to 0. WARNING: Do not open the actuator. If the actuator is inoperative, replace the unit. Troubleshooting Check that the wires are connected correctly. Check that auxiliary switches, DIP switches, and Offset/Span are set correctly. Set the DMM dial to Vac and verify that the operating voltage is within range. If the actuator is not working, check the damper for blockage. If blocked, remove the obstacle and cycle the actuator power off and on. The actuator should resume normal operating mode. Dimensions -3/6-3/6 (30) (30) /8 (3) min. 4 (00) /6 (4) min. 6 (50) 5-9/6 (4) 3.5 (83) 8-3/8 () min. 4 (00) 5/3 (0) Ø5mm min. / () min.-3/8 (60) min. 4 (00) / () 3/4 (9) 3 ft (900) 7-/6 (80) -3/8 (60) EA0876R EA0877R /" NSPT Figure. Dimensions of the DuraDrive Actuator and Anti-rotation Bracket in Inches (Millimeters). Invensys and DuraDrive are trademarks of Invensys plc and its subsidiaries and affiliates. F-75 Specifications may change as design improvements are introduced. Printed in the U.S.A.